Home / 909,872.57-1,364,759.65-278,788.21

Finding the Fourth Proportional to 909,872.57, 1,364,759.65 and 278,788.21

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Solution

The fourth proportional to 909,872.57, 1,364,759.65 and 278,788.21 is: 418,167.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,872.57 : 1,364,759.65 = 278,788.21 : x
  2. Step 2: Convert to fraction form
    909,872.57/1,364,759.65 = 278,788.21/x
  3. Step 3: Cross multiply
    909,872.57x = 1,364,759.65 × 278,788.21
  4. Step 4: Simplify right side
    909,872.57x = 380,478,899,903.73
  5. Step 5: Solve for x
    x = 380,478,899,903.73/909,872.57
  6. Step 6: Final answer
    x = 418,167.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.